8 THE ENTOMOLOGIST. 



except a green mid-dorsal stripe, which is very little darker than 

 the remainder of the body. The whole of the body, including the 

 head, is studded with minute bristles, and on the segment imme- 

 diately following the head are about half a dozen short hairs of 

 equal length, and terminating in an abrupt point ; these project 

 forward, and are very conspicuous against the jet black of the 

 head. The young larvae fed readily upon the leaf of the common 

 clover, and rested along the midrib of the leaf. When first 

 hatched they devoured the epidermis only, though in the middle 

 of each patch which they had nibbled there was usually to be 

 seen a hole breaking right through the venous structure of the 

 leaf. 



On the 9th October one larva changed its first skin, and the 

 head now lost its black colour and assumed a light brown appear- 

 ance, being studded with minute blackish spots, a very short light- 

 coloured hair springing from the centre of each. The ground 

 colour of the body is about the same tint as in its first skin, but 

 the hairs now covering the body each spring from the centre of a 

 whitish spot. Extending down the middle of the back is a furrow, 

 entirely destitute of these hairs. 



On the 20th October the second change took place, and the 

 larva in its third skin exactly corresponds in colour with a clover 

 leaf, both head and body being uniform in colour, and the latter 

 densely wrinkled transversely. On each side of the body, extend- 

 ing the whole length in the region of the spiracles, is a whitish 

 yellow line, the upper surface of which shades off gradually into 

 the green, but having the line of demarcation on the lower side 

 very distinct ; midway between each spiracle there is a very faint 

 pink spot, but at this stage it is only discernible in a very good 

 light. 



On the 2nd November another change took place, and the 

 larva now appeared in its fourth and, as events proved, its 

 last skin. When full fed the larva is about l^th inch long, 

 cylindrical in form, and having a head very small in proportion 

 to the body, which is of a unicolorous dark green, velvety in 

 appearance, owing to the large number of short hairs, and having 

 the pinkish spots in the whitish yellow line, previously referred 

 to, very distinct. The full-fed larvae of C. hyale and C. edusa 

 are ver}^ similar, but C. hyale has longer and darker hairs, and a 

 rougher and less rounded appearance. 



On the 9th November the larva spun a few threads of silk, 

 stretched across from two clover leaves to the side of the jar, and 

 beneath this slight tent, which could afford no real protection, it 

 turned to a green pupa on the 1 0th November. 



The pupa is attached by the tail, and is also supported by a 

 belt in a vertical position, head upwards, as is frequently the 

 manner of Pieris brassicce. It has a pointed head, rounded body, 

 a ridge extending over the back of the thorax, most prominent at 



